path: root/src/plugins/autotest/testtreemodel.cpp

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#include "autotestconstants.h"
#include "autotestplugin.h"
#include "testcodeparser.h"
#include "testframeworkmanager.h"
#include "testprojectsettings.h"
#include "testsettings.h"
#include "testtreeitem.h"
#include "testtreemodel.h"

#include <cpptools/cppmodelmanager.h>
#include <projectexplorer/project.h>
#include <projectexplorer/session.h>
#include <qmljs/qmljsmodelmanagerinterface.h>
#include <texteditor/texteditor.h>
#include <utils/qtcassert.h>

namespace Autotest {

using namespace Internal;

TestTreeModel::TestTreeModel(QObject *parent) :
    TreeModel<>(parent),
    m_parser(new TestCodeParser(this))
{
    connect(m_parser, &TestCodeParser::aboutToPerformFullParse, this,
            &TestTreeModel::removeAllTestItems, Qt::QueuedConnection);
    connect(m_parser, &TestCodeParser::testParseResultReady,
            this, &TestTreeModel::onParseResultReady, Qt::QueuedConnection);
    connect(m_parser, &TestCodeParser::parsingFinished,
            this, &TestTreeModel::sweep, Qt::QueuedConnection);
    connect(m_parser, &TestCodeParser::parsingFailed,
            this, &TestTreeModel::sweep, Qt::QueuedConnection);

    setupParsingConnections();
}

static TestTreeModel *s_instance = nullptr;

TestTreeModel *TestTreeModel::instance()
{
    if (!s_instance)
        s_instance = new TestTreeModel;
    return s_instance;
}

TestTreeModel::~TestTreeModel()
{
    removeTestRootNodes();
    s_instance = nullptr;
}

void TestTreeModel::setupParsingConnections()
{
    static bool connectionsInitialized = false;
    if (connectionsInitialized)
        return;
    m_parser->setDirty();
    m_parser->setState(TestCodeParser::Idle);

    ProjectExplorer::SessionManager *sm = ProjectExplorer::SessionManager::instance();
    connect(sm, &ProjectExplorer::SessionManager::startupProjectChanged,
            m_parser, &TestCodeParser::onStartupProjectChanged);

    CppTools::CppModelManager *cppMM = CppTools::CppModelManager::instance();
    connect(cppMM, &CppTools::CppModelManager::documentUpdated,
            m_parser, &TestCodeParser::onCppDocumentUpdated, Qt::QueuedConnection);
    connect(cppMM, &CppTools::CppModelManager::aboutToRemoveFiles,
            this, &TestTreeModel::removeFiles, Qt::QueuedConnection);
    connect(cppMM, &CppTools::CppModelManager::projectPartsUpdated,
            m_parser, &TestCodeParser::onProjectPartsUpdated);

    QmlJS::ModelManagerInterface *qmlJsMM = QmlJS::ModelManagerInterface::instance();
    connect(qmlJsMM, &QmlJS::ModelManagerInterface::documentUpdated,
            m_parser, &TestCodeParser::onQmlDocumentUpdated, Qt::QueuedConnection);
    connect(qmlJsMM, &QmlJS::ModelManagerInterface::aboutToRemoveFiles,
            this, &TestTreeModel::removeFiles, Qt::QueuedConnection);
    connectionsInitialized = true;
}

bool TestTreeModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
    if (!index.isValid())
        return false;

    TestTreeItem *item = static_cast<TestTreeItem *>(index.internalPointer());
    if (item && item->setData(index.column(), value, role)) {
        emit dataChanged(index, index);
        if (role == Qt::CheckStateRole) {
            Qt::CheckState checked = item->checked();
            if (item->hasChildren() && checked != Qt::PartiallyChecked) {
                // handle the new checkstate for children as well...
                for (Utils::TreeItem *child : *item) {
                    const QModelIndex &idx = indexForItem(child);
                    setData(idx, checked ? Qt::Checked : Qt::Unchecked, Qt::CheckStateRole);
                }
            }
            if (item->parent() != rootItem() && item->parentItem()->checked() != checked)
                revalidateCheckState(item->parentItem()); // handle parent too
            return true;
        }
    }
    return false;
}

Qt::ItemFlags TestTreeModel::flags(const QModelIndex &index) const
{
    if (!index.isValid())
        return Qt::ItemIsEnabled | Qt::ItemIsSelectable;

    TestTreeItem *item = static_cast<TestTreeItem *>(itemForIndex(index));
    return item->flags(index.column());
}

bool TestTreeModel::hasTests() const
{
    for (Utils::TreeItem *frameworkRoot : *rootItem()) {
        if (frameworkRoot->hasChildren())
            return true;
    }
    return false;
}

QList<TestConfiguration *> TestTreeModel::getAllTestCases() const
{
    QList<TestConfiguration *> result;
    for (Utils::TreeItem *frameworkRoot : *rootItem())
        result.append(static_cast<TestTreeItem *>(frameworkRoot)->getAllTestConfigurations());
    return result;
}

QList<TestConfiguration *> TestTreeModel::getSelectedTests() const
{
    QList<TestConfiguration *> result;
    for (Utils::TreeItem *frameworkRoot : *rootItem())
        result.append(static_cast<TestTreeItem *>(frameworkRoot)->getSelectedTestConfigurations());
    return result;
}

QList<TestConfiguration *> TestTreeModel::getTestsForFile(const Utils::FilePath &fileName) const
{
    QList<TestConfiguration *> result;
    for (Utils::TreeItem *frameworkRoot : *rootItem())
        result.append(static_cast<TestTreeItem *>(frameworkRoot)->getTestConfigurationsForFile(fileName));
    return result;
}

QList<TestTreeItem *> TestTreeModel::testItemsByName(TestTreeItem *root, const QString &testName)
{
    QList<TestTreeItem *> result;

    root->forFirstLevelChildren([&testName, &result, this](TestTreeItem *node) {
        if (node->type() == TestTreeItem::TestSuite || node->type() == TestTreeItem::TestCase) {
            if (node->name() == testName) {
                result << node;
                return; // prioritize test suites and cases over test functions
            }
            TestTreeItem *testCase = node->findFirstLevelChild([&testName](TestTreeItem *it) {
                QTC_ASSERT(it, return false);
                return it->type() == TestTreeItem::TestFunction && it->name() == testName;
            }); // collect only actual tests, not special functions like init, cleanup etc.
            if (testCase)
                result << testCase;
        } else {
            result << testItemsByName(node, testName);
        }
    });
    return result;
}

QList<TestTreeItem *> TestTreeModel::testItemsByName(const QString &testName)
{
    QList<TestTreeItem *> result;
    for (Utils::TreeItem *frameworkRoot : *rootItem())
        result << testItemsByName(static_cast<TestTreeItem *>(frameworkRoot), testName);

    return result;
}

void TestTreeModel::synchronizeTestFrameworks()
{
    ProjectExplorer::Project *project = ProjectExplorer::SessionManager::startupProject();
    QList<Core::Id> sortedIds;
    TestFrameworkManager *manager = TestFrameworkManager::instance();
    const QVariant useGlobal = project ? project->namedSettings(Constants::SK_USE_GLOBAL)
                                       : QVariant();
    if (!useGlobal.isValid() || AutotestPlugin::projectSettings(project)->useGlobalSettings()) {
        sortedIds = manager->sortedActiveFrameworkIds();
    } else { // we've got custom project settings
        const TestProjectSettings *settings = AutotestPlugin::projectSettings(project);
        const QMap<Core::Id, bool> active = settings->activeFrameworks();
        sortedIds = Utils::filtered(active.keys(), [active](const Core::Id &id) {
            return active.value(id);
        });
    }

    // pre-check to avoid further processing when frameworks are unchanged
    Utils::TreeItem *invisibleRoot = rootItem();
    const int count = invisibleRoot->childCount();
    if (count == sortedIds.size()) {
        bool different = false;
        QList<Core::Id> registered = manager->sortedRegisteredFrameworkIds();
        for (int i = 0; i < count; ++i) {
            if (manager->rootNodeForTestFramework(sortedIds[i]) != invisibleRoot->childAt(i)) {
                different = true;
                break;
            }
        }
        if (!different)
            return;
    }

    // remove all currently registered
    removeTestRootNodes();

    for (const Core::Id &id : sortedIds)
        rootItem()->appendChild(manager->rootNodeForTestFramework(id));

    m_parser->syncTestFrameworks(sortedIds);
    emit updatedActiveFrameworks(sortedIds.size());
}

void TestTreeModel::filterAndInsert(TestTreeItem *item, TestTreeItem *root, bool groupingEnabled)
{
    TestTreeItem *filtered = item->applyFilters();
    if (item->shouldBeAddedAfterFiltering())
        insertItemInParent(item, root, groupingEnabled);
    else // might be that all children have been filtered out
        delete item;
    if (filtered)
        insertItemInParent(filtered, root, groupingEnabled);
}

void TestTreeModel::rebuild(const QList<Core::Id> &frameworkIds)
{
    TestFrameworkManager *frameworkManager = TestFrameworkManager::instance();
    for (const Core::Id &id : frameworkIds) {
        TestTreeItem *frameworkRoot = frameworkManager->rootNodeForTestFramework(id);
        const bool groupingEnabled = TestFrameworkManager::instance()->groupingEnabled(id);
        for (int row = frameworkRoot->childCount() - 1; row >= 0; --row) {
            auto testItem = frameworkRoot->childAt(row);
            if (testItem->type() == TestTreeItem::GroupNode) {
                // process children of group node and delete it afterwards if necessary
                for (int childRow = testItem->childCount() - 1; childRow >= 0; --childRow) {
                    // FIXME should this be done recursively until we have a non-GroupNode?
                    TestTreeItem *childTestItem = testItem->childAt(childRow);
                    takeItem(childTestItem);
                    filterAndInsert(childTestItem, frameworkRoot, groupingEnabled);
                }
                if (!groupingEnabled || testItem->childCount() == 0)
                    delete takeItem(testItem);
            } else {
                takeItem(testItem);
                filterAndInsert(testItem, frameworkRoot, groupingEnabled);
            }
        }
        revalidateCheckState(frameworkRoot);
    }
}

void TestTreeModel::removeFiles(const QStringList &files)
{
    for (const QString &file : files)
        markForRemoval(file);
    sweep();
}

void TestTreeModel::markAllForRemoval()
{
    for (Utils::TreeItem *frameworkRoot : *rootItem()) {
        for (Utils::TreeItem *item : *frameworkRoot)
            static_cast<TestTreeItem *>(item)->markForRemovalRecursively(true);
    }
}

void TestTreeModel::markForRemoval(const QString &filePath)
{
    if (filePath.isEmpty())
        return;

    for (Utils::TreeItem *frameworkRoot : *rootItem()) {
        TestTreeItem *root = static_cast<TestTreeItem *>(frameworkRoot);
        for (int childRow = root->childCount() - 1; childRow >= 0; --childRow) {
            TestTreeItem *child = root->childAt(childRow);
            child->markForRemovalRecursively(filePath);
        }
    }
}

void TestTreeModel::sweep()
{
    for (Utils::TreeItem *frameworkRoot : *rootItem()) {
        TestTreeItem *root = static_cast<TestTreeItem *>(frameworkRoot);
        sweepChildren(root);
        revalidateCheckState(root);
    }
    // even if nothing has changed by the sweeping we might had parse which added or modified items
    emit testTreeModelChanged();
#ifdef WITH_TESTS
    if (m_parser->state() == TestCodeParser::Idle && !m_parser->furtherParsingExpected())
        emit sweepingDone();
#endif
}

/**
 * @note after calling this function emit testTreeModelChanged() if it returns true
 */
bool TestTreeModel::sweepChildren(TestTreeItem *item)
{
    bool hasChanged = false;
    for (int row = item->childCount() - 1; row >= 0; --row) {
        TestTreeItem *child = item->childAt(row);

        if (child->type() != TestTreeItem::Root && child->markedForRemoval()) {
            destroyItem(child);
            revalidateCheckState(item);
            hasChanged = true;
        } else if (child->hasChildren()) {
            hasChanged |= sweepChildren(child);
            if (!child->hasChildren() && child->removeOnSweepIfEmpty()) {
                destroyItem(child);
                revalidateCheckState(item);
            }
        } else {
            hasChanged |= child->newlyAdded();
        }
    }
    return hasChanged;
}

static TestTreeItem *fullCopyOf(TestTreeItem *other)
{
    QTC_ASSERT(other, return nullptr);
    TestTreeItem *result = other->copyWithoutChildren();
    for (int row = 0, count = other->childCount(); row < count; ++row)
        result->appendChild(fullCopyOf(other->childAt(row)));
    return result;
}

static void applyParentCheckState(TestTreeItem *parent, TestTreeItem *newItem)
{
    QTC_ASSERT(parent && newItem, return);

    if (parent->checked() != newItem->checked()) {
        const Qt::CheckState checkState = parent->checked() == Qt::Unchecked ? Qt::Unchecked
                                                                             : Qt::Checked;
        newItem->setData(0, checkState, Qt::CheckStateRole);
        newItem->forAllChildren([checkState](Utils::TreeItem *it) {
            it->setData(0, checkState, Qt::CheckStateRole);
        });
    }
}

void TestTreeModel::insertItemInParent(TestTreeItem *item, TestTreeItem *root, bool groupingEnabled)
{
    TestTreeItem *parentNode = root;
    if (groupingEnabled && item->isGroupable()) {
        parentNode = root->findFirstLevelChild([item] (const TestTreeItem *it) {
            return it->isGroupNodeFor(item);
        });
        if (!parentNode) {
            parentNode = item->createParentGroupNode();
            if (!QTC_GUARD(parentNode)) // we might not get a group node at all
                parentNode = root;
            else
                root->appendChild(parentNode);
        }
    }
    // check if a similar item is already present (can happen for rebuild())
    if (auto otherItem = parentNode->findChild(item)) {
        // only handle item's children and add them to the already present one
        for (int row = 0, count = item->childCount(); row < count; ++row) {
            TestTreeItem *child = fullCopyOf(item->childAt(row));
            applyParentCheckState(otherItem, child);
            otherItem->appendChild(child);
        }
        delete item;
    } else {
        // we could try to add a non-checked item to a checked group or vice versa
        applyParentCheckState(parentNode, item);
        parentNode->appendChild(item);
    }
}

void TestTreeModel::revalidateCheckState(TestTreeItem *item)
{
    QTC_ASSERT(item, return);

    const TestTreeItem::Type type = item->type();
    if (type == TestTreeItem::TestSpecialFunction || type == TestTreeItem::TestDataFunction
            || type == TestTreeItem::TestDataTag) {
        return;
    }
    const Qt::CheckState oldState = Qt::CheckState(item->data(0, Qt::CheckStateRole).toInt());
    Qt::CheckState newState = Qt::Checked;
    bool foundChecked = false;
    bool foundUnchecked = false;
    bool foundPartiallyChecked = false;
    for (int row = 0, count = item->childCount(); row < count; ++row) {
        TestTreeItem *child = item->childAt(row);
        switch (child->type()) {
        case TestTreeItem::TestDataFunction:
        case TestTreeItem::TestSpecialFunction:
            continue;
        default:
            break;
        }

        foundChecked |= (child->checked() == Qt::Checked);
        foundUnchecked |= (child->checked() == Qt::Unchecked);
        foundPartiallyChecked |= (child->checked() == Qt::PartiallyChecked);
        if (foundPartiallyChecked || (foundChecked && foundUnchecked)) {
            newState = Qt::PartiallyChecked;
            break;
        }
    }
    if (newState != Qt::PartiallyChecked)
        newState = foundUnchecked ? Qt::Unchecked : Qt::Checked;
    if (oldState != newState) {
        item->setData(0, newState, Qt::CheckStateRole);
        emit dataChanged(item->index(), item->index());
        if (item->parent() != rootItem() && item->parentItem()->checked() != newState)
            revalidateCheckState(item->parentItem());
    }
}

void TestTreeModel::onParseResultReady(const TestParseResultPtr result)
{
    TestTreeItem *rootNode
            = TestFrameworkManager::instance()->rootNodeForTestFramework(result->frameworkId);
    QTC_ASSERT(rootNode, return);
    handleParseResult(result.data(), rootNode);
}

void TestTreeModel::handleParseResult(const TestParseResult *result, TestTreeItem *parentNode)
{
    const bool groupingEnabled =
            TestFrameworkManager::instance()->groupingEnabled(result->frameworkId);
    // lookup existing items
    if (TestTreeItem *toBeModified = parentNode->find(result)) {
        // found existing item... Do not remove
        toBeModified->markForRemoval(false);
        // if it's a reparse we need to mark the group node as well to avoid purging it in sweep()
        if (groupingEnabled) {
            if (auto directParent = toBeModified->parentItem()) {
                if (directParent->type() == TestTreeItem::GroupNode)
                    directParent->markForRemoval(false);
            }
        }
        // modify and when content has changed inform ui
        if (toBeModified->modify(result)) {
            const QModelIndex &idx = indexForItem(toBeModified);
            emit dataChanged(idx, idx);
        }
        // recursively handle children of this item
        for (const TestParseResult *child : result->children)
            handleParseResult(child, toBeModified);
        return;
    }
    // if there's no matching item, add the new one
    TestTreeItem *newItem = result->createTestTreeItem();
    QTC_ASSERT(newItem, return);

    // it might be necessary to "split" created item
    filterAndInsert(newItem, parentNode, groupingEnabled);
}

void TestTreeModel::removeAllTestItems()
{
    for (Utils::TreeItem *item : *rootItem()) {
        item->removeChildren();
        TestTreeItem *testTreeItem = static_cast<TestTreeItem *>(item);
        if (testTreeItem->checked() == Qt::PartiallyChecked)
            testTreeItem->setData(0, Qt::Checked, Qt::CheckStateRole);
    }
    emit testTreeModelChanged();
}

void TestTreeModel::removeTestRootNodes()
{
    const Utils::TreeItem *invisibleRoot = rootItem();
    const int frameworkRootCount = invisibleRoot ? invisibleRoot->childCount() : 0;
    for (int row = frameworkRootCount - 1; row >= 0; --row) {
        Utils::TreeItem *item = invisibleRoot->childAt(row);
        item->removeChildren();
        takeItem(item); // do NOT delete the item as it's still a ptr held by TestFrameworkManager
    }
}

#ifdef WITH_TESTS
// we're inside tests - so use some internal knowledge to make testing easier
static TestTreeItem *qtRootNode()
{
    return TestFrameworkManager::instance()->rootNodeForTestFramework(
                Core::Id(Constants::FRAMEWORK_PREFIX).withSuffix("QtTest"));
}

static TestTreeItem *quickRootNode()
{
    return TestFrameworkManager::instance()->rootNodeForTestFramework(
                Core::Id(Constants::FRAMEWORK_PREFIX).withSuffix("QtQuickTest"));
}

static TestTreeItem *gtestRootNode()
{
    return TestFrameworkManager::instance()->rootNodeForTestFramework(
                Core::Id(Constants::FRAMEWORK_PREFIX).withSuffix("GTest"));
}

static TestTreeItem *boostTestRootNode()
{
    return TestFrameworkManager::instance()->rootNodeForTestFramework(
                Core::Id(Constants::FRAMEWORK_PREFIX).withSuffix("Boost"));
}

int TestTreeModel::autoTestsCount() const
{
    TestTreeItem *rootNode = qtRootNode();
    return rootNode ? rootNode->childCount() : 0;
}

bool TestTreeModel::hasUnnamedQuickTests(const TestTreeItem *rootNode) const
{
    for (int row = 0, count = rootNode->childCount(); row < count; ++row) {
        if (rootNode->childAt(row)->name().isEmpty())
            return true;
    }
    return false;
}

TestTreeItem *TestTreeModel::unnamedQuickTests() const
{
    TestTreeItem *rootNode = quickRootNode();
    if (!rootNode)
        return nullptr;

    return rootNode->findFirstLevelChild([](TestTreeItem *it) { return it->name().isEmpty(); });
}

int TestTreeModel::namedQuickTestsCount() const
{
    TestTreeItem *rootNode = quickRootNode();
    return rootNode
            ? rootNode->childCount() - (hasUnnamedQuickTests(rootNode) ? 1 : 0)
            : 0;
}

int TestTreeModel::unnamedQuickTestsCount() const
{
    if (TestTreeItem *unnamed = unnamedQuickTests())
        return unnamed->childCount();
    return 0;
}

int TestTreeModel::dataTagsCount() const
{
    TestTreeItem *rootNode = qtRootNode();
    if (!rootNode)
        return 0;

    int dataTagCount = 0;
    rootNode->forFirstLevelChildren([&dataTagCount](TestTreeItem *classItem) {
        classItem->forFirstLevelChildren([&dataTagCount](TestTreeItem *functionItem) {
            dataTagCount += functionItem->childCount();
        });
    });
    return dataTagCount;
}

int TestTreeModel::gtestNamesCount() const
{
    TestTreeItem *rootNode = gtestRootNode();
    return rootNode ? rootNode->childCount() : 0;
}

QMultiMap<QString, int> TestTreeModel::gtestNamesAndSets() const
{
    QMultiMap<QString, int> result;

    if (TestTreeItem *rootNode = gtestRootNode()) {
        rootNode->forFirstLevelChildren([&result](TestTreeItem *child) {
            result.insert(child->name(), child->childCount());
        });
    }
    return result;
}

int TestTreeModel::boostTestNamesCount() const
{
    TestTreeItem *rootNode = boostTestRootNode();
    return rootNode ? rootNode->childCount() : 0;
}

QMultiMap<QString, int> TestTreeModel::boostTestSuitesAndTests() const
{
    QMultiMap<QString, int> result;

    if (TestTreeItem *rootNode = boostTestRootNode()) {
        rootNode->forFirstLevelChildren([&result](TestTreeItem *child) {
            result.insert(child->name(), child->childCount());
        });
    }
    return result;
}

#endif

/***************************** Sort/Filter Model **********************************/

TestTreeSortFilterModel::TestTreeSortFilterModel(TestTreeModel *sourceModel, QObject *parent)
    : QSortFilterProxyModel(parent)
{
    setSourceModel(sourceModel);
}

void TestTreeSortFilterModel::setSortMode(TestTreeItem::SortMode sortMode)
{
    m_sortMode = sortMode;
    invalidate();
}

void TestTreeSortFilterModel::setFilterMode(FilterMode filterMode)
{
    m_filterMode = filterMode;
    invalidateFilter();
}

void TestTreeSortFilterModel::toggleFilter(FilterMode filterMode)
{
    m_filterMode = toFilterMode(m_filterMode ^ filterMode);
    invalidateFilter();
}

TestTreeSortFilterModel::FilterMode TestTreeSortFilterModel::toFilterMode(int f)
{
    switch (f) {
    case TestTreeSortFilterModel::ShowInitAndCleanup:
        return TestTreeSortFilterModel::ShowInitAndCleanup;
    case TestTreeSortFilterModel::ShowTestData:
        return TestTreeSortFilterModel::ShowTestData;
    case TestTreeSortFilterModel::ShowAll:
        return TestTreeSortFilterModel::ShowAll;
    default:
        return TestTreeSortFilterModel::Basic;
    }
}

bool TestTreeSortFilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
{
    // root items keep the intended order
    const TestTreeItem *leftItem = static_cast<TestTreeItem *>(left.internalPointer());
    if (leftItem->type() == TestTreeItem::Root)
        return left.row() > right.row();

    const TestTreeItem *rightItem = static_cast<TestTreeItem *>(right.internalPointer());
    return leftItem->lessThan(rightItem, m_sortMode);
}

bool TestTreeSortFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
{
    const QModelIndex index = sourceModel()->index(sourceRow, 0,sourceParent);
    if (!index.isValid())
        return false;

    const TestTreeItem *item = static_cast<TestTreeItem *>(index.internalPointer());

    switch (item->type()) {
    case TestTreeItem::TestDataFunction:
        return m_filterMode & ShowTestData;
    case TestTreeItem::TestSpecialFunction:
        return m_filterMode & ShowInitAndCleanup;
    default:
        return true;
    }
}

} // namespace Autotest